![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/218257/image.png)
remove the edges present outside the circle
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i am able to detect the circle in an eye image but along with circle i am also getting other extra edges . how do i remove that?please help i have uploaded both original image
and processed image ![100.png](https://www.mathworks.com/matlabcentral/answers/uploaded_files/218253/100.png)
![008_1_1.jpg](https://www.mathworks.com/matlabcentral/answers/uploaded_files/218252/008_1_1.jpeg)
![100.png](https://www.mathworks.com/matlabcentral/answers/uploaded_files/218253/100.png)
gray=imread('008_1_1.jpg');
%gray=rgb2gray(gray);
t4=imresize(gray,[512,512],'bilinear');
%imshow(t4);
%set(gcf,'Units','Normalized','OuterPosition',[0 0 1 1]);
binary=imbinarize(t4,.4);
%imshow(binary);
%binary=imcrop(binary);
g=fspecial('gaussian',[512 512],15);
ig=imfilter(binary,g,'same');
bw2=edge(ig,'canny',0.53,10);
%k=get(handles.id1,'String');
filen=['100.png'];
%basefile=sprintf('%d.png',k);
fullfilenam=fullfile('C:\Users\AKSHATHA\Documents\MATLAB\database\eyeimages',filen);
imwrite(bw2,fullfilenam);
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回答(1 个)
KALYAN ACHARJYA
2019-5-6
编辑:KALYAN ACHARJYA
2019-5-6
Here assuming that the circle size is maximum in all cases, if not result will different
result=bwareafilt(binary_image,1);
imshow(result);
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/218257/image.png)
Hope it Helps!
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